I was lying on my bed dressed only in shorts, looking at a ‘top-shelf glossy magazine’. The pictures were full colour and very explicit. My hand was inside my shorts, gently rubbing my hard cock in preparation for a good wank, when suddenly the door burst open. In a flash I’d withdrawn my hand and looked up to see my younger sister standing there, fresh out of the shower, wrapped in a fluffy bathrobe and towelling her hair dry. I quickly thrust the magazine to one side.

“Have you nicked my Ipod?” she yelled.

“No!” I answered, angry that she’d burst in on me, something she doesn’t usually do. “I have not!”

“Well where is it then?” she demanded. She peered at the magazine.

“Oh! Admiring the female form, were we?”

“So what!” I said crossly. “Perfectly normal for someone of my age!”

She looked at my shorts. My erection, dwindling now at the shock of her bursting into my room, was still very evident.

“Must be a good mag!” she commented. She stepped into the room and picked it up before I could stop her. Retreating out of my immediate reach she scanned the pages.

“Oh! Not only tits!” She peered closely at the page. “No wonder you’ve got a hard on!”

“Sis!” I expostulated. “What’s got into you? You’re not supposed to say things like that!”

“Oh shut up!” she said again. “Don’t be such a prude!” She turned more pages, looking at the pictures closely. “If you can look at tits and cunts in a glossy magazine and have a wank over them, I can say whatever I like!”

I raised up on one elbow and stared at her. She’d never talked this way before. At least not in front of me. Maybe with her friends. She got to the last page and looked at me over the top of the magazine.

“Not that impressed with any of them,” she said. “One or two nice pussies and a couple of decent titties but none that does anything for me.”

I lunged for the magazine and succeeded in wrenching it from her grasp.

“They’re not supposed to do anything for you!” I pointed out irritably. “They’re supposed to do things for boys and men!”

“How do you know?” she pouted. “I might be a lesbian!”

“Sis!” I exclaimed again.

“Alright, I’m not,” she admitted, “but I might have been. Anyway,” she eyed my shorts again significantly, “you obviously liked one of those bodies. Or more.”

I was trying to think of a suitable put-down to this comment and send her packing when she stepped back to the doorway, undid the bathrobe and opened it wide.

“Does this body do anything for you?”

My mouth opened to speak and remained in that position. I stared at her in total shock and amazement.

“Sis!” I eventually gulped. “What the hell are you doing?”

“Showing you my body!” she answered impatiently. “Do you like it? Does it do anything for you?” She thrust her hips at me suggestively. “Does it turn you on?”

My sister is twenty. Just. I am two years older. Of course I’d seen her wearing all sorts of clothes as we grew up together. Shorts, bikinis, tight jeans and cropped tops, miniskirts, the lot. A part of me had occasionally remarked to myself that she had a terrific figure and often looked quite sexy, but the ‘brother’ part just dismissed this as an idle observation and I had never, ever, thought of my sister in a sexual way.

Now she was parading in front of me, blatantly showing me her body, or most of it, in an obviously provocative way.

She had on a flowery, thin, almost see-through bra and skimpy panties so she wasn’t completely naked, but if anything, this made it worse. Her breasts, I realised now, were beautiful;- round, firm, thrusting up without any support from the bra. Her nipples were taut and thrust out, pushing against the thin material of the bra. It certainly wasn’t cold in the room and at the back of my mind I thought, so she must be aroused. I could clearly see her aureoles, large, dark and round. The thin panties hid just enough to be completely erotic. I could see the line of her lips through them, and a dark area which could only be her cunt itself. Her fresh, young, soft skin showed through the material, and I realised with yet another shock that she was shaved smooth. Her love mound showed as a soft bulge at the front of her pants. Her body was lithe, her legs, I already knew, were long and tanned and very sexy. All in all she was a vision, a sexy, enticing, temptress with a body a man could die to hold and touch and be inside.

And she was my sister.

The vision had its effect. My erection immediately returned, stronger than ever.

She looked at my shorts as she continued to dance in front of me, thrusting her hips to and fro.

“Yes, I see it does do something for you. Quite a lot, in fact!”

“Sis!” I managed to say after swallowing a couple of times. “Stop it! What do you think you’re doing? Cover yourself up!”

“Prude!” she said again. “What’s the matter? Embarrassed? You’ve seen me in a bikini before. What’s the difference?”

I swallowed again. My mouth was dry. “The difference,” I said awkwardly, “ is that you’re…..you’re--” I gave up and waved a hand at her to signify the dancing and erotic movements she was making. “And I was already --”

“You were already hard from the magazine,” she interrupted. “Ready to have a wank, masturbate, give yourself a handjob.”

With each word I felt a twitch in my cock.

“Sis! Sis!” I implored. “Stop it please! You’re being really nasty, doing that when you know I’m already turned on!”

She suddenly ran forward and leapt onto the bed, the open bathrobe billowing behind her like some sort of cape. And she leapt on top of me, kneeling over me and straddling me.

I gasped. Her breasts were now only a few inches from me and I felt the warmth of her skin as she pressed herself against me.

She leaned down without warning and planted her mouth against mine, lying full length on top of me and continuing to rub herself against me. Her tongue forced its way into my mouth and thrashed around, licking and tasting and curling around mine as she kissed me.

I tried to push her up, away from me, but she slid her arms quickly under my head and pulled me even tighter against her own face.

And, unbidden and without any conscious effort from me, my body pushed up against hers as my cock strained inside my shorts and demanded to be let out.

I made noises as I couldn’t speak out loud. They were supposed to be ‘No! No! No!’ but if she understood them she ignored them. I was shocked beyond belief, partly at the way my little sister was behaving, and partly at the thought that my body had responded to her by signifying its pleasure at her closeness.

Eventually she pulled her head away from me and breathed hard.

“You do like my body!” she crowed. “I felt you push against me!”

Seizing the opportunity to finally speak I let rip at her.

“Sis! I don’t know what this is all about but stop it now! It’s gone far enough! You’re being really mean and spiteful. Now go away, leave me alone and I’ll get rid of the results of your little game!”

She gazed at me without moving and spoke very softly.

“I’m not being mean and spiteful. And it definitely hasn’t gone far enough!” She leaned forward and kissed me again, a soft, loving, more than sisterly kiss on the lips. And she moved one hand from under my head and I felt her wriggle as she slid it between us and grasped the outline of my cock through my shorts.

“Uh!” I gasped, jerking involuntarily. “Don’t!”

“Why?” she asked in a soft, seductive voice. “You like it! I can tell!” She grinned at me. “Why do you want me to stop?”

“You’re my sister, for fuck’s sake!” I gasped, hardly realising I was swearing in front of her and trying not to think about her slender fingers still grasping my cock through my shorts and rubbing me. “Stop! We can’t do this!”

“Who says?” she pouted. “Society? Bollocks! Who’s to know? Mum and Dad are away. We have the place to ourselves all weekend. Maybe it’s wrong, but you want it and I want it. I’m on the pill. So we’re safe. Are you telling me you’ve never done anything wrong in your life? ‘Course you have. So have I. I’ve often thought about having sex with you. Wondered about your cock. How big it is. What it tastes like. How it would feel sliding into my cunt. Or my ass. Now I have the chance to find out. You were already hard when I came in and you’re still hard. Have you never thought about fucking me?”

I was shaking my head from side to side through all this and my eyebrows shot up when she mentioned fucking her ass.

“No! I haven’t thought about it at all!” I gasped. “Never! You’re my sister! Sister! Brothers and sisters don’t fuck. They don’t have any sexual feelings towards each other at all!”

“Well, I do!” she said softly. “Have had for a long time. I want you, brother! I want to hold you, wank you, suck you, and most of all I want to feel you slide your big cock into me and fuck me silly. And later, when you’ve recovered, I want to feel that same big cock fuck my asshole! I want every type of sex I can get from you, my big brother!”

I just stared at her. I was completely speechless. To think my, supposedly, demure little sister could talk like this, use these words, and above all, use them to her brother and admit she wanted sex with him had left me utterly astounded and totally at a loss for anything to say.

But my body had no such qualms and I was more and more conscious of her fingers grasping me from outside my shorts and slowly and gently wanking me. As if reading my –subconscious—thoughts, she suddenly reached up inside one leg of my shorts and I felt her warm fingers close round my rod. Her touch was heavenly and I knew that if her hand stayed there a minute more I would cum.

“Stop!” I pleaded one more time in a resigned voice. “If you don’t stop I shall have to cum. Sis, stop, please!”

But in answer she wriggled down the bed, away from my head, kissing my chest and stomach as she moved until she got to my shorts. She pulled the top down and my cock sprang out, free at last and only moments away from exploding. Quickly she licked the tip, opened her mouth and took me inside. The feeling was indescribable. I’d had blowjobs before but this was unlike any other. In the furthest, dim recesses of my mind I knew it was because it was my sister, it was wrong, forbidden fruits, and that made it even better than with anyone else. Her tongue slurped round my helmet and I felt her sucking my shaft as she grasped the base with her fingers and licked and sucked at me, her eyes closed in rapture.

Until now I had kept my hands beside me on the bed and hadn’t touched her at all, except when I tried to push her away, but now, feeling her lovely mouth encompassing me, sucking, licking and tasting my unbelievably hard cock, I couldn’t resist stroking her head, feeling her fresh, still damp hair in my fingers as I pulled her against me. I thrust upwards and into her and with a huge gasp I felt my cum explode from my cock and into her mouth. I pushed up as hard as I could and I came again and again and again, my hot cum gushing from me in huge spurts. I had never had such a huge orgasm, or shot so much cum in all my life. I looked down and saw that it was already leaking from her lips and she was using it as a lubricant as she continued to slide her mouth up and down the length of my rod, my cum glistening on my shaft and trickling from the corner of her mouth. My fingers entwined in her hair and I pulled her against me, loving the feel of her around me, loving the thought that my sister had just sucked me off, loving the thought that I was in her mouth.

Finally I sank back on the bed, gasping for breath. She released my cock from her lips, tipped her head back and swallowed.

“Oh, yes I can!” she said impishly. She bent down and licked the last few drops of white cum from my cock and stomach. “I like the taste of your cum. I know you have a huge libido and wank yourself a lot when you don’t have a girlfriend, like now. I’ve tasted your cum, but only when it’s old, not fresh like now.” She paused and regarded my puzzled expression. “I’ve licked your cum from your sheets,” she said.

“WHAT!”

“Tasty! But much better fresh, with your big cock filling my mouth.”

“Sis! Sis!” I shook my head. Did I really know my own little sister? She’d sucked cum from my bed sheets? She swore, flaunted herself at her own brother, sucked him off and still apparently wanted a lot more sex from him?…..Was this really my sister?

I looked at her soft young body lying between my legs, her fingers idly tracing around my cock, soft now and lying on my stomach. Yes, it was my sister, but not the sister I always thought I had. She was beautiful, sexy, erotic and I wanted her.

She gently eased my cock back inside my shorts.

“Have a little rest,” she said. “I want a lot more from you yet and I know you can do it.”

She slid up and kissed me with all the tenderness of a young lover kissing her man.

“Sis,” I said firmly. “That was gorgeous. Quite unbelievable. I admit, I loved every minute of you sucking me and giving me a blowjob. But that’s it! We’ve done something we shouldn’t, it was nice, heavenly, but we’ve done it now and that’s it.”

She pulled away from me and stared at me, a glint in her eye.

“What do you mean?” she demanded. “What about me? You’ve just shot a gallon of cum into my mouth. You loved it. What about me? Am I supposed to go without any satisfaction, then?”

I felt a twinge of remorse. What she said was true. She’d come on to me and I’d had the most incredible pleasure from her. Wasn’t she entitled to some pleasure in return? Yes, she was, but she was my sister!

“Yes, I bloody well am!” she went on before I had a chance to phrase a reply. “I want my pleasure from you! And I’m going to get it! You’re going to lick me out, fuck me, fuck my ass and--- and--- anything else I want!”

She stared at me defiantly.

“And--- and—“ I repeated. “There isn’t any more ‘and’ is there?”

She looked away. “Well, yes,” she said more quietly. “I might get my toys later too.”

“TOYS?”

She looked at me again, more defiant than ever.

“Oh, shut up! You’ve just fucked your sister’s mouth so don’t pretend to be a prude! Yes, toys! What do you do when you want sex and don’t have a girl? You look at sexy magazines and hold your cock in your hand and wank yourself till your cum shoots out! What am I supposed to do if I don’t have a bloke and want sex? Go without? Bollocks! I rub my clit with my finger till I’m wet and it’s dripping everywhere and my own cum shoots out of my cunt, or I use a toy to pretend fuck me, like you pretend to fuck your hand! Yes! Toys! But I want to feel you use them on me!”

She was quite breathless with anger and I felt suitably chastened.

“Sorry, sis,” I said softly. “I’m not a prude. You know that. But you’ve given me so many shocks today! That was another one! I never dreamed you had, or used, sex toys! It’s just not something I thought about my own sister! The same as I never thought about you sucking me, or me fucking you. These things have just never entered my head. Till now,” I had to add.

I shrugged again, helplessly. “It’s your own fault! I love you, sis, you know I do. Very much. But now….now, I can’t look at you like before. Now I want that lovely body! I want to do everything to it! Especially I want to fuck you!”

That was it. I’d said it. I’d admitted to my little sister that I wanted to fuck her.

“You want to do everything?” she asked me archly.

I nodded. “Everything.”

“Even this?” And so saying she slid up my body until she was straddling me again, gazing down at me with love in her eyes.

“Even this?” she repeated.

I waited, puzzled, not sure what she meant, and then, to my utter amazement and shock yet again, I felt a warm trickle on my stomach and running down my thighs. It was a very pleasant sensation and I thought she must have somehow made herself cum, all over me, but I instantly realised that couldn’t be. I looked down.

My little sister was peeing on me.

I heard her chuckle and looked up at her.

“Bet you didn’t think I did that, either!” she chuckled again.

“Sis! What….how…..where did you learn to do that?”

She stopped the flow of warm piss and rolled off me to lie beside me.

“Uh!” she said. “One of my ex’s, the bastard! Did it to me one day. I was so shocked I slapped his face and wouldn’t let him touch me for ages. He sweet talked me and sweet talked me until I agreed to let him do it again. Then it wasn’t a shock. I still wasn’t sure I liked it but after the second or third time I realised I did. It was nice!”

She rolled over again and pressed her lips against my shorts. I felt her sucking the pee from them, and probably the last drop or two of cum as well.

“Lovely!” she said. She looked up at me. Her face softened and she stroked my cheek.

“Sorry, lover. Really I am. But when I knew Mum and Dad were away and we would be alone this weekend, I thought, I am not going to miss this chance! No way! I knew you’d probably be at home as you don’t have a girlfriend now. And you know I told my ex to go and play on the motorway a few weeks ago. So there was just us. And I knew I wanted to have you this weekend. But I’m sorry I’ve shocked you, my adorable big brother. I hope you’re over it now. I just want us to enjoy ourselves together. All day and all night and all tomorrow too.”

My head was a mixture of thoughts. In the first place I’d felt a thrill when she called me ‘lover’. I liked it. A lot. Then I thought about how she’d planned this, how her thoughts had centred on us both having sex together and how determined she was that it would happen. But I also thought, what will happen when our parents are back? Is this a one-off occasion? I couldn’t see how it could be anything else. Our parents don’t go away that often. And I felt her fingers on my cheek, and felt her warm body against mine, her nipples pressing my chest and her hot thighs against mine, and I thought, I don’t want this to be a one-off occasion! No way! I want to do this again. And again. I want to feel her soft mouth sucking my cock! I want to slide it inside her hot wet cunt! And yes, her lovely tight asshole too! I want to have sex with my sister as often as I can!

“Sis, what happens when Mum and Dad are back? We won’t be able to do this then! Have you thought about that? Suppose, just suppose, we have a weekend of sex as you suggest. Suppose we both get to like it so much that we want to do it again? We won’t be able to! And what happens in a few years when you want, or I want, for that matter, to settle down with a family? We’re going to remember this weekend and it may cause us a lot of grief.”

She kissed me gently and stroked my cheek.

“I have thought about it. We’ll find a way. Love always does.”

I gave her a sharp look. She was gazing at me, her eyes soft and gentle and trusting. Like a little sister.

“I love you, my big, strong, clever bro’. I love you very much.”

“I love you too, sis,” I began.

But she was shaking her head.

“I don’t mean I love you like a brother. I mean I love you. Really love you. I have done for a long time. I haven’t thought of you like a brother for ages. I’ve only thought of you as a man. A man I want. A man who makes me go weak at the knees. Who turns me on every time I’m near him, smell him, brush against him. I love you, bro’,” she repeated.

“Sis!” Once more she’d jerked the ground from under me. “I had no idea--- You can’t ---!”

“Of course not,” she said. “I’ve been very careful to keep my feelings hidden, especially in front of Mum and Dad. It’s been difficult, I can tell you! But sometimes I’ve walked around with my pants soaking wet from thinking about you. And me. That’s why this weekend was so important. Why I was so determined that my big strong brother was going to fuck me, come what may!”

She raised herself and looked at me, her eyes searching my face.

“Does that make me a slut?”

“Don’t be silly! No!” I reached for her and hugged her to me, tightly. “Just because you’ve shocked me beyond belief, said things, done things I would never have dreamed you would even know about, doesn’t mean you’re a slut!” I hugged her again and enjoyed the feel of her warm body against mine. I felt her relax.

“Good,” she said. “Are you recovered yet?”

“If you mean for sex, no! I’m still sensitive! If you mean from all the shocks, no! I wonder if I ever will recover from them! I’m still worried about this. Whatever your feelings, or mine, it’s wrong. It’s taboo! And I’m worried about after this weekend too.”

“Well, I’m certainly not going to tell any of my friends!” she stated firmly. “This is my secret. Our secret. And I can’t believe you’re going to go to the pub boasting about how you’ve shagged your sister!”

“I haven’t!” I pointed out indignantly.

“But you’re going to. Aren’t you?” she asked, a note of doubt in her voice. “You’re not going to leave me high and dry after I’ve opened my heart to you, are you?” She looked at me searchingly again.

I could feel every inch of her flesh that was touching mine. I could feel the heat coming from her thighs as they pressed against mine. I remembered the feel of her mouth sucking on my rod and her tongue flicking at the tip. My sister’s mouth. My sister’s tongue. Yes, I thought with a sigh. A sigh of resignation that I would be committing myself to a path down which there would be no turning back. I sighed again. A sigh of pleasurable remembrance at her mouth……her tongue.

“I don’t know, my sweet little sis,” I sighed once more. “I want to. God, how I want to now I’ve thought about it and had a taste of things to come. Yes, sweet little sister. I want to have as much sex with you as we can this weekend, but you’re my sister and it’s wrong! We’ll both feel so guilty, so bad, afterwards…….” I tailed off, already feeling guilty about the blowjob she’d given me.

She snuggled hard against me and rested her head on my chest.

“No we won’t,” she replied. “I don’t feel guilty at all. It’s something I’ve wanted for so long. And you won’t feel guilty because it’s me that’s started it and led you on and you’re a bloke and you want sex from anything in a skirt, like anyone your age.”

“Charming!” I said indignantly. “I do have standards, you know! Not just anything in a skirt!”

“I meet your standards,” she said flatly.

I shut up. I couldn’t answer this because she’d met enough of my female friends in the past, be they serious, but usually short-lived relationships, or one night stands. And she was right, of course, in that her own luscious, firm, rounded, pert and enticing little body probably far exceeded any standards I’d ever set for myself.

“Oh, sis!” I groaned. “Why are you doing this? I rolled my head from side to side in a genuine agony of indecision. The thought of a weekend of sex with her was so tremendously exhilarating that half my mind was in a fever of anticipation. The other half, well, maybe a quarter, well, maybe just a small segment, recoiled at the thought that she was my sister and I had a responsibility to her. And to myself. And my self esteem. And Mum and Dad. And ---

“Oh, fuck it!” I said aloud. I rolled over and hugged her to me, looking at her face, just inches from mine.

“I hope we don’t regret it, but okay. Yes. I want to have sex with you, okay? Lots of it!”

She kissed me on my eyes and then my nose.

“Good! It’s made me very happy to hear you say that.”

We lay together for a while, each immersed in our own thoughts. My sister and I had had a fairly quiet and peaceful sibling life, compared to some. Oh, we’d had our spats and tantrums, our arguments and shouting matches as we grew up. But mostly we adored each other in a brotherly sisterly sort of way. We’d helped each other with school homework from time to time and later she’d make a point of checking out any girlfriend I’d brought home and let me know her opinion, whether I wanted it or not. By the same token, I’d been wary of one or two of her boyfriends and told her that if they gave her any grief or stress to let me know. I’m not a violent man, nor am I normally aggressive, but I would have been first in the queue to protect my little sister if some boy was mistreating her in any way. So we had a strong bond already. What would happen after this weekend was anybody’s guess. Would it strengthen that bond? Or destroy it?

She disentangled herself from me and rose from the bed, holding out a hand to me.

“Come on,” she said. “I’m going to cook. Come to the kitchen with me.”

So I rose and followed her out of my room. She threw off the bathrobe and chucked it through her own open bedroom door where it landed on her bed. As she led the way downstairs I looked at her body, lithe and supple in front of me.

But now I wasn’t looking at my sister. I was looking at a gorgeously sexy, inviting body. A body I’d felt right next to me and wanted to feel there again. For the first time in my life I realised consciously that she had the most firm, round, pert ass that a man could wish to see, touch or slide his cock into. I saw her waist, tapering in before slightly widening again at her hips. A waist that begged to have arms, my arms, round it.

At the bottom of the stairs she stopped suddenly so that I bumped into her. That is, my cock bumped straight into that pert, firm ass, right between her cheeks and she pushed herself back against me, hard.

“Mmmmm!” she exclaimed. She wriggled a bit, pressing her crease against the feel of my cock inside my shorts. The thoughts I’d been having and the feel of her ass against me was enough to start an erection again, albeit a slight one.

She straightened up and continued to the kitchen.

“Nice,” she threw over her shoulder. “Soon be ready again. After we’ve eaten we’ll be able to spend all afternoon in bed.”

Whilst she collected everything she needed to make us a light lunch, I brewed a pot of coffee. Holding my mug in one hand I went to her and put an arm round her waist. That slim, warm, firm waist, but delightfully soft to my touch.

“Whilst you’re doing that, I’ll go and have a shower and change,” I said.

“Don’t you dare!” she said sharply. “You stay as you are!”

I felt the dampness at the front of my shorts from where she’d peed on me.

“But,” I began.

“No!” She waved a spoon at me warningly. “I want you to keep those on and nothing else! Okay?”

I shrugged helplessly. “Okay. If that’s what you want.”

She was looking at me pensively.

“On the other hand,” she said softly, almost to herself, “ I wonder.” She tapped the spoon against her teeth thoughtfully.

“Why not?” she answered her own unspoken query. “Wait here.”

Dropping the spoon on the table she hurried out and I heard her go upstairs. Moments later she returned, one hand hidden behind her back. She came up to me and planted a kiss on my lips.

“Big bro’,” she said, “Are you ready for another shock?”

“There’s more?” I enquired, dismayed.

“Probably more than you can imagine,” she answered dismissively, “ but right now I’m thinking of just one, smallish one.”

“Smallish?” I echoed.

She nodded. “Do you remember a pair of white cotton boxer shorts you used to wear?” she asked me. “Very soft, quite old now, and with an opening at the front without any fastenings?”

I dimly remembered having a pair of boxer shorts like that, only they weren’t called boxers. Because they had a short leg they were just pants, as opposed to briefs. So I nodded.

“Yes, I remember. Haven’t seen them for ages. Thought they must have been thrown out, or the washing machine had eaten them, or something.”

“I have them,” she said, and produced them from behind her back.

I gaped at them, at her, and at the pants again.

“You?….When…? I mean, why?…..”

I stared at her in disbelief, again wondering if this was really my sister, or had she perhaps become a pod-person from the planet Mars?

“Why on earth have you got my old pants?” I finally managed to string together a coherent question.

To her credit, she actually went slightly pink.

“I rescued them from the washing bin,” she explained.

“Nicked them,” I suggested.

“Saved them,” she corrected. “I wanted them because they smelled of you. And because they have an opening at the front so I could slide my dildo or vibrator in there when I wanted to masturbate and think of you. But mostly,” and she coloured a little more, “ because you’d either wanked into them or had a wet dream in them and they had your cum on them.”

She thrust them into my free hand and turned back to her cooking chores.

“I want you to put them on,” she said with her back to me, “in place of the shorts.”

Still processing this new, and slightly shocking information that she’d walloped me with, I absently turned them over in my hands and examined them. I remembered them. Hadn’t seen them for ages, not since last winter in fact, and I remembered vaguely wondering then why I couldn’t find them. There was the opening at the front, just a gap with two slightly overlapping hems and no fiddly buttons or anything to prevent easy access. And yes, I saw with embarrassment, there was a big stain at the front which could only have been cum, whether it was the result of a wank or in my sleep I couldn’t remember. And to my horror and dismay I saw that there were even a couple of skidmarks at the back of them. But there were other stains, deep in the crotch and I wondered about them until I realised that they must be my own sister’s juices and cum if, as she suggested, she’d been wearing them for her own sexual pleasures. I felt myself going red.

“Sis,” I stammered, “ are you telling me you’ve had these all the time and been wearing them, just as they are?”

“I love them,” she said by way of an answer. “I told you, they smell of you, my brother, a nice, strong, manly smell that makes me think about you, your cock, having sex with you. When I wear them I can cum so quickly and with such a huge climax that I soak them.”

“Erm ---yes, I can tell,” I admitted.

She turned to face me. “But now I want you to wear them,” she said. “All weekend.”

I gazed at her helplessly.

“Sis,” I began again.

“There are many things you don’t know about me, aren’t there?” she commented. “To you, I’m just your little sister. A teenager. A baby. Someone for you to protect, or fight with, or disparage. Well, I’m not, not any more. I’m all growed-up. I’ve had sex, quite a few times. I’ve tried lots of different ways. Some I liked, a few I didn’t. But I’m not just a little baby for you to amuse yourself with any longer. Nor am I a silly, giggly teenager who gets a crush on any half decent looking bloke. I’m old enough to know my own desires, my own wishes, dreams. And I’m old enough to know what I want. And I want you. I love you, my brother. You’re all the world to me now.”

And she came to me and put her arms round me and hugged me very hard, her head resting on my bare chest and those wonderful, gorgeous, hard nipples pressing against my skin through the thin fabric of her bra. Even through my shorts I could feel her love mound pressing hard against my cock.

“Now you stay right where you are while I just finish this quickly and then we’ll eat.”

She laid out the table and I watched her in silence. I felt that my whole world had changed this day.

She moved around and I couldn’t help but watch her body as she worked. She bent over in front of me to get a salad crisper from a cupboard and her firm round cheeks presented themselves to me. A dark line ran between them and I imagined the crease of her ass, my tongue licking there and kissing that hidden place, her rosebud, as the heat of her cheeks surrounded my face. I thought about pulling down those skimpy pants and thrusting my rod into that pert, tight little ass.

She was right. She wasn’t my little sister any more. She never would be again. I wanted her, all of her, very much. Below the leg of her thin pants her thighs were tanned, soft and I wanted to hold them, kiss them, lick them, hearing her moan with pleasure as I did so. I sighed, thinking of the commitment I’d just mentally made and hoping that the path down which we were both about to go would not suddenly rear up and bite us both in the backside.

“Come and eat,” she said.

She’d made us a huge fresh salad of cold meats, cheeses, pickles and the like and I suddenly realised I was ravenous. She sat, half facing me and smiled at me often as we tucked in to her repast. Stretching out one bare leg she rubbed her foot against my thigh, wiggling her toes as her foot moved higher and higher, creeping under the leg of my shorts and still moving up my thigh until I felt her toes gently caressing my balls and the base of my cock.

I smiled at her. There was no point in objecting, and anyway, it was a nice sensation.

She giggled and said, “I can’t get enough of you. I want to touch you, somehow, somewhere, all the time.” But she withdrew her foot and continued eating. We finished the lunch in silence. I have no idea what she was thinking about, but I could have hazarded a guess. For myself, I was still trying to come to terms with this volte-face in my life, still trying to justify to myself the decision I’d made, and still thinking about that luscious body which I was soon going to be enjoying.

We put the dirty dishes in the dishwasher. She cleaned a little and I made us both a mug of coffee. She leaned against the counter nursing her mug with both hands and regarded me with a mischievous smile playing at the corners of her mouth.

“Are you ready?” she enquired, raising one eyebrow. “Are you ready to have an incestuous relationship with your sister? Is that beautiful great cock of yours recovered enough so that it can fill my cunt, or my ass, and fill me full of your hot cum?”

I wanted to answer ‘yes and yes and yes!’ but I just stared at her.

She put down the mug and picked up those old pants of mine from a chair. She stepped in front of me and pulled down my shorts to my ankles. Crouching down she nuzzled my cock and my stomach, her tongue flicking out and back, licking me gently. Her face moved lower and she took my cock with one hand, not erect yet but already beginning to harden, and licked the back of it from the base to the tip, her lips roving round my helmet and producing an immediate erection that strained towards her.

Yes!” she breathed. “You’re ready, no doubt about that!” She lifted one of my legs and I stepped out of the shorts. She held the white pants so that I could step into them and pulled them up over me, slowly, gently, erotically. My cock immediately found the opening and sprang out. Again she bent and licked it and I could hear her breathing deeply.

“Oh, I love your smell!” she murmured. “It drives me wild! Feel me!”

I made no move, just enjoying the feel of her mouth and tongue again.

“Feel me!” she repeated and took one of my hands and placed it between her legs.

She was incredibly warm, her thighs on either side of my hand rubbing my skin and passing their heat into my hand. My fingers involuntarily curled inwards and I felt the outline of her cunt lips. I gently used one finger to rub between them and let out a huge breath. Her pants were soaking wet from her love juices and my finger had no difficulty pushing the soft fabric into her, into her wet cunt as I sought her clit and began to rub it gently.

She gasped. “That’s what you do to me when you’re near me!” she said as she drew in a big, shuddering breath. “And when I smell your smell, I’m done for. I just soak myself. And now, finally, to feel you rubbing my cunt, to feel your finger stroking my clit……” she shuddered and pulled away from me, releasing my cock at the same time.

“Not here!” she said. “Upstairs! I want to feel your whole body next to me! I want to feel your face between my legs, licking my cunt and my clit. I want to bury my head between your legs and kiss your balls, suck them, suck your cock and smell that wonderful smell that is you!”

And she grabbed my hand and dragged me out of the kitchen and upstairs to my bedroom. Pushing me onto the bed she shut the door and leaned against it, breathing heavily and looking at me.

“I’m going to cum so quickly!” she said. “As soon as you touch me, I’m going to cum! I just know it!”

And she came to me and lay beside me and I was lost.

I stroked her hips and her waist, my hand rising up to cup one breast. She let out a gasp and closed her eyes. I massaged her breast gently, playing with the nipple. It was so hard I thought it would break through the fabric of her bra. Her own hand moved down and rubbed the outside of my pants, rubbing the outline of my cock, her fingers curling round to cup my balls.

I kissed her, full on the lips and felt a thrill go through me. It was like kissing a girl for the first time ever. I kissed her again and knew that the excitement was because this was forbidden fruit. Her lips were soft, delicate, her breath warm and gentle through her slightly open mouth. Her tongue flicked out and circled my lips and then she thrust her head forward and her tongue flashed into my mouth, writhing furiously and encircling my own tongue. I responded fully now, all inhibitions forgotten as I let myself sink into the rapture of enjoying her body.

My cock found the opening in my pants of its own accord and her fingers encircled it, stroking me gently, long, slow strokes that made me even harder and I pushed my hips towards her, wanting my cock to find her wet, warm cunt.

My own hand dropped to her thighs and she gasped again as she felt me stroking them, my fingers moving upwards as they caressed her soft flesh, until I found the edge of her soaking wet pants and my hand moved across to rub her lips, a finger again searching for the cleft between them so that I could rub her clit.

But she pulled away from me and gasped, “No! No! Not your finger! You’ll make me cum too soon! I want you!”

And she rolled away and onto her back and opened her legs wide. I moved across to lie above her, my hands supporting my weight and gazed down at my soft, sexy, beautiful sister’s face. My cock hovered inches from her pussy. She quickly lifted her hips and pulled down her pants, just an inch or so.

I must have looked puzzled because she added breathlessly, “I want to feel that cock sliding into my cunt surrounded by my own pants because they’re wet and I’m wet and I know they’ll give enough for you to do it! And then, and then I’m going to feel your cock in me bareback! Just you, your hot hard cock, in me, sliding into me and fucking me!”

I moved my hips forward and the tip of my cock aimed true and straight and I felt her hot wet cunt lips against the tip, even through her pants. I pushed into her a little more, and my cock slid an inch or two inside her, taking her thin, wet pants with it.

And I wanted this more than anything I’d ever wanted and I slid forward and my rampant rod slid into her open wet cunt like a homing missile. She was wonderfully, gorgeously tight and gripped my rod with her muscles and she was so wet and open that I slid right into her, up to the hilt and she cried out so loud and jerked her body I thought that I must have hurt her.

I stopped and she gasped “Yes!! Don’t stop! You’re in me! Oh, my gorgeous big brother! You’re in my cunt and I’m so wet and it’s filling me and I love it! Now fuck me, hard!”

And I began to stroke in and out, getting faster very quickly and almost with each stroke into her sopping wet pussy she let out a cry. Her hands pulled at my back and her fingers dug into me. She pushed up against me, her back leaving the bed as she thrust up to meet my strokes. Her hands dropped to my ass and she pulled me into her as hard as she could.

The feeling of being inside her was unbelievable. Her young, supple body was so perfect for me that I felt exhilarated like never before. I was in my young sister, fucking her, feeling her hot wet pussy gripping my cock and I knew that I wouldn’t be able to hold out for long.

“Wait!” she gasped, and she raised her legs up over my shoulders, opening her beautiful, hot, wet hungry cunt even more. As I thrust into her she began to tremble and the next two movements into her made her almost scream each time.

And then her fingers were raking my back as she came. She screamed aloud again and I felt my cock become soaked within her as the first huge gush of her juice and cum shot over it. There was so much I thought for a brief second that she was peeing on me again and then I realised that it was her hot cum enveloping my cock. Her fingers were clawing at my back and again she shot a great quantity of cum over me, buried deep within her. It was enough to take me to the point of no return and even as she released that second gush of fluid I came myself, spurting my hot cum into her, once, twice, three times I felt my cock shudder as I sent my creamy spunk deep into her cunt. It was such a tremendous orgasm that I felt my legs and almost my whole body trembling with the ecstasy of it.

Her eyes were screwed tightly shut and we were both covered with sweat from our passion. Her hair lay damply across one cheek and as she finally began to subside I realised that my back was sore from her fingernails. I started to gently slide back, to withdraw from her, but she let out a guttural “NO!” and gripped my ass again, pulling me into her as she slumped back on the bed, her breath ragged. She slid her legs off my shoulders and lay flat on her back, my own body resting half on her now as I relaxed too.

“Stay there!” she murmured in that guttural growl. “You stay in me! I’ve waited for so long to feel your big cock in me that you’re not moving from there now!”

And we lay, panting, hot, sweaty and I felt her cum and love juices, and my own hot cum, flow against my cock as it slowly subsided within her wet cunt. She began to stroke my back gently, caressing my hips and ribs, up to my neck and back again.

“Oh it feels so good to have you inside me!” she murmured in my ear. “I’ve dreamed of this moment when your hot strong body is next to mine, on top of mine. I love you so much, my brother.”

I managed to pull myself away from her and rolled to lie beside her. I looked into her face, her hair all tousled and damp, and I kissed her gently.

“Sis, you can’t say that. You can’t love me like that. I know you’re not a silly schoolgirl any more, but you just cannot love me that way.”

I paused and she was regarding me seriously and with a tinge of sadness in her eyes.

“Why can’t I?”

“Think about it!” I said with a note of desperation in my voice. “What will happen when we can’t be together? What will happen if I meet a girl and want to have a long, long relationship with her, maybe even marry her and have a family? How will you feel? What will you do?”

There was a silence as she continued to look at me, her fingers now gently tracing along my cheek and round my lips. I thought that perhaps I was beginning to get the message across, that she would stop and think about where this was going, where it could go. And could not.

“Don’t you love me a little bit too?” she whispered in a very small voice.

This was not what I expected at all. I bit back my immediate reaction of ‘no, not like that’ and thought about it.

I remembered our growing up times, visiting our grandparents, Christmases and birthdays. I didn’t think about our parents or anybody else, my thoughts were centred on my sister and me, how we acted together as kids, how we behaved to each other. I recalled summers, bathing in the huge plastic pool Dad used to set up in the garden for us when it was hot. Birthday parties in the garden. I remembered her first ‘love’ and how she’d cried when he’d dumped her, and how I’d tried to comfort her. All these nostalgic reminiscences had one thing in common. The feeling of brotherly love I’d had for my sister, all through our years together. I looked at her sweet, innocent face now, and without moving my eyes my mind looked at her lovely lithe body, her shapely legs and that wonderful dark area hidden beneath those thin panties.

Did I love her now like I had done all our lives? And with a heart that was fleetingly as heavy as lead, then fluttering with excitement and exhilaration, I admitted silently to myself that no, I did not love her like that now. My feelings had changed. I loved her as a woman, a lover, a fantastic sexual partner who had brought me to heights of ecstasy I had never known with any other girl. I wanted to be next her. I wanted to be inside her wet, juicy cunt. I wanted to feel her arms round me, caressing me, stroking my cock, I wanted to see her eyes full of tenderness as she looked at me and know that she was loving me.

She had remained quite silent as I thought all this, just watching me and waiting. I could see in her eyes her own love, this forbidden and dangerous love, and the trust that had always been there as we had grown up together. The trust that said, ‘ you’re my big brother and you’ll protect me, not hurt me’. But I could also see in her eyes the slight fear and worry of what she would hear when I answered her.

Should I end it all now? Should I answer her that I did not and could not love her the way she said she loved me, the way she wanted me to love her? Should I be cruel to be kind, to protect us both? Should I get up from the bed, shower, change, refuse to be close to her, refuse any sex with her, and turn back from this perilous and dangerous path?

I rolled to lie on top of her again and buried my face against hers. Putting my lips against her ear, I said “Yes, sis, I do love you too. I do love you as a girl, a beautiful, adorable, luscious, desirable girl.

I love you as someone with whom sex is the most fantastic I’ve ever had. Yes, my lovely, adorable little sister, I love you too.”

And her arms went round my back and she held me so tightly I could hardly breathe and I felt her body shudder as she sobbbed once or twice. And I felt relief, and was glad, that I’d admitted the truth and hadn’t tried to hide my true feelings, either from her or myself. And I knew that now there could definitely be no turning back.

She held me like that for a while, kissing me occasionally.

“I don’t know what I’ll do if you meet someone else,” she whispered. “I don’t want you to, of course.

I don’t want anyone else. Only you. But…….” She tailed off, then began again. “I suppose it’s inevitable, isn’t it? Maybe I’ll meet someone too, but I don’t think so. I won’t try. But if you do, you will tell me, won’t you? You won’t try and hide it from me?”

And she pushed me away from her so that she look into my eyes again.

“I’ll tell you,” I promised. She nodded, and then hugged me to her again.

“That sex was so good! I told you I’d cum as soon as you touched me. Now I want more!”

She started to push me down the bed until I was level with her breasts and pulled my head against them. She said nothing but she didn’t need to.

Gently I started kissing one nipple and fondling the other breast with my hand. My lips and tongue circled round, teasing, feeling, bringing her nipple to an incredible hardness through her bra. My fingers gently rubbed her other breast and nipple producing the same result. She moaned a little as her hands stroked my back.

I eased my hands under and felt for the clasp of the bra. She arched her back to give me room and then it was undone, and I gently drew out the straps on each side as I slid my hands from under her. Now her bra was just resting on those gorgeous mounds, those full, firm, round, beautiful breasts and I used my teeth to lift the material gently from her, and with a quick flip of my head it was gone. In front of me her breasts waited, and my tongue and lips went to them, now feeling their softness yet their firmness as I kissed each one, moving from one to another and back again without ever removing my mouth from her warm flesh.

Her hands were everywhere, stroking, rubbing, caressing me, on my back, my neck, through my hair and the moans were coming more often as I aroused her. Slowly I slid down her body, my kisses and licks now covering her stomach, across to her hips and returning, and lower still, reaching the waistband of those erotic, thin pants.

I stayed outside them, kissing her love mound and relishing the feel of her hot skin through them , smooth as it was with not a vestige of hair.

She started to push up against my mouth and her legs opened, inviting me to lie between them. I moved over to rest between her thighs. My imagination had not played me false:- I could feel their heat on either side of my cheeks as I kissed her thighs, licking, tasting, gently nibbling, moving higher and higher slowly, from one side to the other.

I reached the leg of her pants, licked her hot thigh once more, then ran my tongue from her hip, down, down, following the line of the leg until I reached the softness of her cunt lips beneath my tongue, then I moved to the other side and did the same thing, never touching further than her lips, full and hot.

I allowed my tongue to briefly flash across her panties, just brushing her opening and she gasped. Using only my tongue I gently probed inside one leg, feeling her hot smooth flesh on my tongue as I explored higher and deeper. Then I had to hold back the leg of her pants with my fingers as my tongue tip found the wet gap between her lips and explored further inside……tasting her juices which were saturating her pants and my tongue and lips. And then I reached her button, her centre of ecstasy and she let out a long guttural groan and heaved up at me. I licked her, back, forth, around, up and down and her body started to writhe to meet my movements. I felt a gush of her love juices and they tasted divine. And then, as my tongue licked and lapped at her clit, she could hold back no longer and I felt her cum join her love juice on my tongue.

“Uh! Uh! UH! Uhhhhhh!” she gasped and spasmed as she came.

I continued licking at her but she pushed me away.

“No! No! Wait!” she gasped, and lay there, her breasts heaving as she sought to regain her breath. I slid up her body and licked her nipples again but her hands went to cover them and she shook her head breathlessly, her eyes closed tightly.

“My sweet love! I can’t! Wait, please!”

So I lay beside her and watched her and thought, yes, my beautiful sister, you really are something else! Gone was any lingering doubt about what we were doing. Now I wanted her. I wanted to feel that luscious body next to me, beside me, around me, all the time.

“God, that was nice!” she suddenly murmured.

I lay and watched her, a feeling of contentment inside me as I relived her passionate pleasure in my mind. I wanted to be inside her again. I wanted to fuck her until she was totally exhausted and couldn’t move. And I wanted to take her in my arms and just hold her, doing nothing, just holding her close to me and feeling her body there. I loved my sister.

No. I loved my lover.

Her eyes opened and she gazed at me.

“I wondered, I thought, often, how you would be in bed,” she murmured. “I wondered if you’d jump at the chance to fuck me without a thought, but I guessed you wouldn’t want to. At first. And then I wondered, if you did, would you just fuck me without giving me any pleasure, any satisfaction, any climax? But somehow, I knew you wouldn’t. I knew I would cum as soon as you were in me. But you’ve given me more pleasure than I ever dreamed of. Your cock in me, your tongue licking me, it was all just……” she shrugged, “unbelievable. I love you, my brother!”

And her hands went round me again and she pulled me to her, but gently, tenderly, lovingly.

“I must have a rest,” she giggled softly, “but I hope you’ve got plenty more cum in you, waiting to shoot inside me?”

“I have,” I said. “Plenty. And for you, I think I’ll have a lot. Often. I love you too, sis.”

We kissed and then relaxed, lying beside each other contentedly.

“When you’re ready, I am too,” I said after a while.

“In a minute,” she said. Then, “No. Now!”

She reached down and put her hand inside the opening at the front of my pants, holding my cock which immediately started to rise to the occasion. She extracted it and began to wank me again.

“I want this in my ass!” she said. “I want to feel this sliding inside my ass and filling me, shooting your cream into me! But now take these off, “ she tugged at my pants, “so I can feel your balls against me as you fuck me.”

Between us we pulled them down and I kicked free of them.

“Wait!” she said, took them in one hand and massaged herself between her legs with them.

“I like it when they’re full of my juice, my cum and yours, “ she said. “You’ll have to shoot into them again for me before we’re finished. But first, me!” She pulled her own pants down and kicked free of them, and for the first time in my adult life I saw my sister naked. My eyes relished her body, ravaged her body, as I drank in her smooth soft skin, her long legs, and as she opened them wide again for me, her smooth love mound and cunt lips, wet, gleaming in the light from her own juices and cum.

She pulled at me and rolled me on top of her and I could feel the heat of her thighs once more as I lay between them. She raised those beautiful legs and grasped her own ankles, her cunt now open and so inviting in front of me, so wet and hot that I wanted to thrust my cock, hard again now, into her and pound her into a frenzy. But her rosebud was also there, and my cock twitched and strained harder as she used her fingertips to collect some of her own juice and moistened the crease between her cheeks and her small round rosebud.

Her eyes gleamed with expectation and her voice was low, husky and sexy.

“I do!” my sister urged. “I do! I love to feel my ass full and stretched, and I love the feel of cum shooting in me! But now I want to feel your cock and your cum there!”

I guided my cock towards her ass, rubbed the tip between her cheeks, then eased up to her rosebud. She murmured, deep in her throat and spread her lovely legs wider. Slowly I thrust my hips forward and I felt her rosebud give as my length started to slide into her. Her passage was even tighter than her soft wet cunt, and I knew that it would only take a few movements from me before I would have to cum. I slid into her, further, further and she moaned and gasped and tried to push back against me, urging me further in. My cock was now buried deep in her, up to the hilt, and I could feel the softness of her cheeks against my balls as I paused. She looked up at me, her eyes shining.

“Yes!” she breathed. “I love it! I can feel that huge shaft in me! It’s gorgeous! Now fuck my hole!”

“Sis, I won’t be able to wait long,” I said. “You’re so beautiful and hot and tight round my cock, I love being deep in your asshole, but as soon as I move, I shall cum.”

“Good!” she growled, “ but fuck me hard! Hard! Pound into me even if it’s only two or three times!”

I put my hands round her hips and pulled her against me and maybe my cock slid another few millimetres into her, but then I stroked, fast, hard, very hard, my hips banging against the backs of her thighs and ass cheeks as she held her legs up, open wide. My balls slapped against her ass too, and that feeling, her tightness, heat and the sensation of her muscles gripping me as I thrust at her was too much. Three times I pounded my length into my sister’s incredible ass and I could wait no longer and with a groan I stayed deep in her and let my hot cream spurt out and fill her back passage. The wetness from my cum made me want to stroke more, and as I pulled back a little I felt my cock lubricated deliciously by my own cum and pounded at her again twice more, sliding easily in her now, which produced another spasm from my rod and one last gush of cum into her.

She had moaned and gasped with each of my thrusts and as she felt my hot cream enter her she let out small, guttural cries of ‘Oh! Oh! Oh!’.

Completely spent, I gently eased back and withdrew from her. She allowed her legs to fall on either side of me, then moved them together, gripping me between them as she writhed and wriggled on the bed below me.

“So NICE!” she murmured again. “I’m so full of your cum, it’s amazing! I can feel it in me now! Hot! It’s just gorgeous!”

I managed to squeeze from between her legs and flopped on the bed beside her.

“Yes,” I agreed somewhat breathlessly. “Nice! Your ass is lovely! That was just heavenly!”

“Mmmmmmm!” she said and rolled to face me, her arms going round me and pulling me close to her.

“Love you, love you, love you!” she said.

I stroked her hair as I lay, recovering.

“I think,” I said, “that we should have a rest for a while. What about some coffee?”

I nodded. “Yes, I want it too, sis. I want you very much, even now when I’m already spent.”

It was her turn to nod.

“Sis,” I said seriously, “You’re not going to breathe a word of this to anyone, are you? Not even your best friend?”

“Huh! If I told herit’d be all over town in five minutes! No! You’re my secret! Now I can think about, no, now I can remember the feel of your cock in my pussy, your tongue licking my cunt and clit, your big, hot cock in my ass! Now I don’t have to imagine it! I can remember it whenever I want. No, I shan’t breathe a word to anyone.”

“You promise?” I asked again.

“I promise. And you?”

“Sis, I promise. If anyone ever found out, we’d be in such trouble….my God, I don’t want to think about it!”

She noddeed seriously. “Not a word. From either of us. Okay, let’s go and have a drink of something. And maybe a bite, too.”

She rolled off the bed, pulled on her pants again and winked at me. “If your hot cum leaks out of me, I want it to keep it in my pants,” she said, “so I can feel it, smell it, taste it if I want! And put yours on again.”

I did, and we went downstairs to the kitchen.

* * * *

The weekend went so fast I wouldn’t have believed it. We sucked, licked, fucked, stroked, wanked, kissed, and then fucked again without stopping, except to regain our strength after each incredible, ecstatic bout of sex. She got her toys and we used them on each other. The time my hard cock was rammed into her cunt and she thrust her dildo into my hand and told me to fuck her ass with it at the same time, she cried out so loudly as she climaxed that I was sure somebody must be able to hear her. But the windows and door were closed and I smothered her lips with mine to quieten her screams of ecstasy. The TV remained off, we didn’t go out, we ate occasionally, she put some CDs on while we fucked, but apart from that it was just an entire weekend of unbridled, rampant, non-stop incestuous sex.

Finally, late Sunday afternoon, we tidied the place up before our parents returned. With one final, last bout of sex, in which we first licked and sucked each other everywhere, caressed and wanked each other before I pounded her ass again, withdrawing in time to roll her over and enter her wet cunt for one delicious last climax that shot so much cum into her it leaked out of her pussy and onto her thighs which she then proceeded to collect in her pants again, we had to admit that any more would be too dangerous and we showered, dressed, changed the bedclothes and by the time our parents walked in the door we were sitting demurely in front of the TV, watching a movie.

And of course, after that, it became so difficult, so frustrating for us both that we took every tiny opportunity to pleasure each other. If we were in and our parents were out, even for just half an hour shopping, we had sex. At night we usually managed to sneak a quick rub, often enough to orgasm, as we passed each other on the way in or out of the bathroom. The very fact that we had our secret was enough to make us both want to be with each other, touch each other, fuck each other, all the more. But opportunities were not many, or often, and we made sure we took full advantage of them. And that included the car. Not so comfortable, but we managed once or twice.

Some three weeks after that weekend, in which time we’d managed to fuck each other in a real, unhurried way at home maybe four or five times, I picked up Sis from work in the car one Friday evening and brought her home with me. So, unusually, we both walked in the front door together. Mum and Dad greeted us in their usual perfunctory, but nonetheless affectionate way, and Dad said, “You’ve both got a letter. Same one, it looks like.”

As I was last in I was next to the hall table where post was left. Sure enough, there were two letters, one for me and one for Sis. Both white business envelopes, printed name and address. Local postmark, dated yesterday. I flipped over the envelopes but there was nothing to indicate where they’d come from. Sis came back into the hall to collect hers and looked at it disinterestedly.

“Some sort of crap, probably,” she muttered. She took it with her as she went upstairs to her room. I did the same, thinking that it could wait until I’d showered and changed, whatever it was.

I had just stripped off my shirt and jeans when there was a knock at the door and without waiting for an invitation it was opened and Sis ran into the room. She closed the door behind her and stared at me. She was trembling from head to foot and as white as a sheet.

“Have you opened that letter?” she asked in a hoarse whisper.

I shook my head.

“Open it!”

“Sis, what is it? You look as if you’ve seen a ghost! What’s the matter?”

“Open the fucking letter!” she screamed in that same hoarse whisper.

I grabbed it from the bedside table and ripped it open. Sis had come to sit on the bed beside me and I could feel her trembling. She was holding a sheet of paper and she thrust it at me. There was a single sheet of plain white paper in my envelope. The paper had two lines of print on it, no heading, no signature. I read it, then looked at her paper. They were identical. Sis and I stared at each other.

“Oh fuck!” I said.

I put my arm round her and held her tightly as she started to cry. The letters read:-